The researchers call for experimental studies to further examine the relationship between vitamin D, bone mineral density, and BPPV. Source. Talaat H., et al. Low bone mineral density and vitamin D deficiency in patients with benign positional paroxysmal vertigo. European Archives of Oto-Rhino-Laryngology, 2014.
Columnar epithelium forms the lining of the stomach and intestines. Some columnar cells are specialized for sensory reception such as in the nose, ears and the taste buds of the tongue. Goblet cells (unicellular glands) are found between the columnar epithelial cells of the duodenum.
Two forms occur in the human body: 1  Covering and lining epithelium â forms the outer layer of the skin; lines open cavities of the digestive and respiratory systems; covers the walls of organs of the closed ventral body cavity.2  Glandular epithelium â surrounds glands within the body.pithelial tissue is a sheet of cells that covers a body surface or lines a body cavity.